Multi-door air-cooled refrigerator based on air-door-free design

Abstract

The invention discloses a multi-door air-cooled refrigerator based on an air-door-free design, and relates to the technical field of air-cooled refrigerators. The refrigerator comprises a refrigerator body, an air return cavity is formed in the rear side of the refrigerator body, multiple sets of air cooling mechanisms are installed in the air return cavity, each storage chamber in the refrigerator body corresponds to one set of air cooling mechanism, an air guide assembly is installed in the air return cavity, and the air cooling mechanisms are connected in series through the air guide assembly; the air cooling mechanism comprises two supporting assemblies which are symmetrically arranged, the supporting assemblies are provided with cold supply assemblies with the distance adjustable, the air guide assembly communicates with the cold supply assemblies on the two sides of the air guide assembly, and one side of each cold supply assembly communicates with a refrigeration pipe set located in the storage chamber. According to the refrigerator, the refrigeration requirements of refrigerators with different width sizes can be met, and compared with a traditional fixed refrigeration structure, the application range is greatly widened through the design of the air cooling mechanism and the air guide assembly.

Description

Technical Field

[0001] This invention belongs to the field of air-cooled refrigerator technology, and in particular relates to a multi-door air-cooled refrigerator based on a doorless design. Background Technology

[0002] Air-cooled refrigerators use air for cooling. When hot air flows through a low-temperature evaporator, the water vapor in the air condenses on the evaporator, causing the air temperature and humidity to drop. After the low-temperature and low-humidity air is introduced into the compartment, a low-temperature and low-humidity environment is formed to store items. For multi-door air-cooled refrigerators, it is often necessary to meet the cooling requirements of each storage compartment.

[0003] In existing technology, traditional air-cooled refrigerators typically have an air guide cavity inside the rear side wall. The air guide cooling structure arranged inside the air guide cavity achieves cooling for each storage compartment. However, the air guide cooling structure in traditional air-cooled refrigerators is mostly fixedly installed. When the width of the air-cooled refrigerator changes, it is necessary to select other models of air guide cooling structures that are compatible with it. This results in poor adaptability of the air guide cooling structure, which cannot meet the usage needs of air-cooled refrigerators of different widths and increases the manufacturing cost of air-cooled refrigerators. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-door air-cooled refrigerator based on a doorless design. Through the specific structural design of the return air cavity, air guide assembly, support assembly, cooling assembly, refrigeration pipe assembly, evaporative cooling cavity, cold air channel and return air inlet, it solves the problem that the air guide cooling structure in traditional air-cooled refrigerators has poor adaptability and cannot meet the usage needs of air-cooled refrigerators of different widths and sizes.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a multi-door air-cooled refrigerator based on a doorless design, including a refrigerator body, a return air cavity provided on the rear side of the refrigerator body, multiple sets of air-cooling mechanisms installed inside the return air cavity, each storage compartment of the refrigerator body corresponding to a set of air-cooling mechanisms, an air guide assembly installed inside the return air cavity, and the air-cooling mechanisms connected in series through the air guide assembly; the air-cooling mechanism includes two symmetrically arranged support components, and adjustable-space cooling supply components are installed on the support components. The air guide assembly is connected to the cooling supply components on both sides, and a refrigeration pipe assembly located in the storage compartment is connected to one side of the cooling supply component.

[0006] In this embodiment of the invention, an equipment compartment is provided at the bottom of the refrigerator body, a partition plate is fixedly installed inside the equipment compartment, a partition cover is fixedly provided on one side of the partition plate, the equipment compartment is used to install refrigeration equipment, an evaporative refrigeration chamber is provided on the side of the partition plate opposite to the partition cover, an evaporator is installed inside the evaporative refrigeration chamber, and a cold air channel is provided inside the partition cover.

[0007] In this embodiment of the invention, the return air cavity is connected to the cold air channel through a mounting hole, the return air cavity is connected to the evaporative cooling cavity through a return air inlet, the evaporative cooling cavity is connected to the cold air channel through a cold air inlet, a blower is installed inside the cold air inlet, and the evaporator is disposed between the return air inlet and the cold air inlet.

[0008] In this embodiment of the invention, the return air cavity is provided with multiple sets of cold air inlets and cold air outlets. Each set of cold air inlets consists of two symmetrically arranged cold air inlets, and each set of cold air outlets consists of two symmetrically arranged cold air outlets. Each storage compartment is connected to the corresponding cold air inlet and cold air outlet, and the cold air inlet is located below the corresponding cold air outlet.

[0009] In this embodiment of the invention, the air guiding assembly includes an air guiding pipe disposed in the return air cavity. The air guiding pipe has air guiding chambers that correspond one-to-one with the storage chambers along the axial direction. A connecting pipe communicating with the corresponding air guiding chamber is fixedly disposed at the bottom of the air guiding pipe. The connecting pipe is inserted into the mounting hole. An exhaust port communicating with the corresponding air guiding chamber is disposed at the top of the air guiding pipe.

[0010] In this embodiment of the invention, the air guide assembly further includes several horizontal guide pipes, L-shaped guide pipes, and a positioning part. The horizontal guide pipes and L-shaped guide pipes are both installed on the peripheral side of the air guide pipe, and the air guide cavity is connected to the corresponding horizontal guide pipe and L-shaped guide pipe. The positioning part is fixedly installed on the peripheral side of the air guide pipe, and the L-shaped guide pipe is inserted into the corresponding cold air outlet.

[0011] In this embodiment of the invention, the support assembly includes two symmetrically arranged support parts. Limiting guide rails are fixedly arranged on both opposite side walls of the return air cavity. The support parts are slidably sleeved on the corresponding limiting guide rails. The support parts and the return air cavity are connected by fasteners. Two horizontal guide rods are fixedly arranged on the surface of the support parts. An elastic element connected to the support parts is arranged between the horizontal guide rods.

[0012] In this embodiment of the invention, the cooling assembly includes a conduit slidably sleeved on a horizontal guide rod, the conduits being fixedly connected by a support plate, the support plate being connected to a corresponding elastic element, a hollow guide portion being fixedly installed on one side of the support plate, an air inlet pipe sleeved inside the horizontal guide pipe being connected to one side of the hollow guide portion, and an air inlet head inserted into the corresponding cold air inlet being connected to the other side of the hollow guide portion.

[0013] The present invention has the following beneficial effects: 1. The present invention installs the entire air guide assembly inside the return air cavity, so that the connecting pipe is tightly inserted into the mounting hole, and each air inlet head is tightly inserted into the corresponding cold air inlet. Then, each refrigeration pipe group is installed into the corresponding storage compartment, so that the refrigeration pipe group is tightly inserted into the corresponding cold air inlet. Then, the air inlet pipe is brought close to the support part by compressing the elastic element on the support assembly. After the support part on the support assembly is sleeved onto the designated position on the limiting guide rail, the support plate is gradually released and the air inlet pipe on it is inserted into the corresponding horizontal guide pipe by means of the elastic restoring force of the elastic element. At this time, the horizontal guide rod is engaged with the corresponding positioning part. The position of the entire air guide assembly is limited by each positioning part. After the support part is fixed to the inner wall of the return air cavity by fasteners, the installation of each air-cooling mechanism is completed in the same way. This installation method can adapt to the refrigeration needs of refrigerators of different widths. Compared with the traditional fixed refrigeration structure, the air-cooling mechanism and air guide assembly design in this application greatly improve the scope of application.

[0014] 2. In this invention, when cooling air enters the lower storage compartment through the lower cold air inlet, it cools the storage compartment. Then, the cold air returns to the air guide assembly through the cold air outlet of the storage compartment. Next, the cold air enters the middle storage compartment through the middle cold air inlet, cooling the storage compartment. Then, the cold air returns to the air guide assembly through the cold air outlet of the middle storage compartment. Finally, the cold air enters the upper storage compartment through the upper cold air inlet, cooling the storage compartment. Then, the cold air returns to the air guide assembly through the cold air outlet of the upper storage compartment and enters the return air cavity. The air returning to the return air cavity enters the evaporative cooling chamber through the return air inlet. After being cooled again by the evaporator, it is sent back into the cold air channel by the blower. In this way, the air-cooled refrigeration cycle in the entire refrigerator can be realized. By symmetrically arranging two refrigeration pipe groups in each storage compartment and through the special structural design of the refrigeration pipe groups, the cooling efficiency of each storage compartment can be improved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a multi-door air-cooled refrigerator based on a doorless design in this invention.

[0017] Figure 2 for Figure 1 A structural side view.

[0018] Figure 3This is a rear view of the refrigerator body in this invention.

[0019] Figure 4 This is a side sectional view of the refrigerator body in this invention.

[0020] Figure 5 This is a cross-sectional view of the air guide assembly in this invention.

[0021] Figure 6 for Figure 5 Enlarged view of the local structure at point A in the middle.

[0022] Figure 7 This is a diagram showing the cooperation relationship between the air-cooling mechanism and the air-guiding assembly in this invention.

[0023] Figure 8 for Figure 7 A partial structural diagram.

[0024] Figure 9 for Figure 8 A structural diagram from another angle.

[0025] Figure 10 This is a schematic diagram of the support component in this invention.

[0026] Figure 11 This is a schematic diagram of the cooling component in this invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Refrigerator body, 2-Return air cavity, 3-Air-cooling mechanism, 4-Storage compartment, 5-Air guide assembly, 6-Support assembly, 7-Cooling assembly, 8-Refrigeration pipe assembly, 9-Equipment compartment, 10-Divider plate, 11-Divider cover, 12-Evaporator cooling cavity, 13-Cold air passage, 14-Mounting hole, 15-Return air inlet, 16-Cold air inlet, 17-Cold air entrance, 18-Cold air outlet, 19-Air guide duct, 20-Air guide cavity, 21-Connecting pipe, 22-Exhaust outlet, 23-Horizontal guide duct, 24-L-shaped guide duct, 25-Positioning part, 26-Supporting part, 27-Limiting guide rail, 28-Horizontal guide rod, 29-Elastic element, 30-Conduit, 31-Support plate, 32-Hollow guide part, 33-Air inlet duct, 34-Air inlet head. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] For a specific implementation example, please refer to Implementation Example 1. Figures 1-11 This invention relates to a multi-door air-cooled refrigerator based on a doorless design, comprising a refrigerator body 1, a return air cavity 2 located at the rear of the refrigerator body 1, the return air cavity 2 being connected via a rear sealing plate, and multiple sets of air-cooling mechanisms 3 installed inside the return air cavity 2. Each storage compartment 4 within the refrigerator body 1 corresponds to a set of air-cooling mechanisms 3, and an air guide assembly 5 is installed inside the return air cavity 2. The air-cooling mechanisms 3 are connected in series via the air guide assembly 5, thereby achieving cooling for each storage compartment 4. The air-cooling mechanism 3 includes two symmetrically arranged support components 6, on which adjustable-space cooling components 7 are installed, thus meeting the cooling needs of refrigerators of different widths. The air guide assembly 5 is connected to the cooling components 7 on both sides, and a refrigeration pipe assembly 8 located in the storage compartment 4 is connected to one side of the cooling component 7.

[0031] In this embodiment of the invention, such as Figure 3 and Figure 4 As shown, the refrigerator body 1 has an equipment compartment 9 at the bottom. A partition plate 10 is fixedly installed inside the equipment compartment 9. A partition cover 11 is fixedly installed on one side of the partition plate 10. The equipment compartment 9 is used to install refrigeration equipment. An evaporative cooling chamber 12 is provided on the side of the partition plate 10 opposite to the partition cover 11. An evaporator is installed inside the evaporative cooling chamber 12. A cold air channel 13 is provided inside the partition cover 11. The air can be cooled by the evaporator installed in the evaporative cooling chamber 12.

[0032] Furthermore, the return air chamber 2 is connected to the cold air channel 13 through the mounting hole 14, the return air chamber 2 is connected to the evaporative cooling chamber 12 through the return air inlet 15, and the evaporative cooling chamber 12 is connected to the cold air channel 13 through the cold air inlet 16. A blower is installed inside the cold air inlet 16, and the evaporator is located between the return air inlet 15 and the cold air inlet 16. When the blower is working, the cooled air in the evaporative cooling chamber 12 can be transported to the cold air channel 13, and then transported to each storage chamber 4 for cooling through the mounting hole 14, the air guide assembly 5 and each air-cooling mechanism 3.

[0033] In this embodiment of the invention, such as Figure 3As shown, the return air cavity 2 is equipped with multiple sets of cold air inlets 17 and cold air outlets 18. Each set of cold air inlets 17 consists of two symmetrically arranged cold air inlets 17, and each set of cold air outlets 18 consists of two symmetrically arranged cold air outlets 18. Each storage chamber 4 is connected to the corresponding cold air inlet 17 and cold air outlet 18, with the cold air inlet 17 located below the corresponding cold air outlet 18. When cooling air enters the storage chamber 4 from the lower cold air inlet 17, it can cool the storage chamber 4. Then, the air returns to the air guide assembly 5 through the cold air outlet 18 at the storage chamber 4, and then cools the air through the middle cold air... The air enters the middle storage compartment 4 through inlet 17 to cool the storage compartment 4. Then, the cold air returns to the air guide assembly 5 through the cold air outlet 18 at the middle storage compartment 4. The air then enters the upper storage compartment 4 through the upper cold air inlet 17 to cool the storage compartment 4. The air then returns to the air guide assembly 5 through the cold air outlet 18 at the upper storage compartment 4 and enters the return air cavity 2. The air returning to the return air cavity 2 enters the evaporative cooling cavity 12 through the return air port 15. After being cooled again by the evaporator, the air is sent back into the cold air channel 13 by the blower. In this way, the air-cooled refrigeration cycle in the entire refrigerator can be realized.

[0034] In this embodiment of the invention, such as Figure 5 and Figure 6 As shown, the air guide assembly 5 includes an air guide duct 19 disposed in the return air cavity 2. The air guide duct 19 has an air guide cavity 20 that corresponds to the storage chamber 4 along the axial direction. A connecting pipe 21 that communicates with the corresponding air guide cavity 20 is fixedly disposed at the bottom of the air guide duct 19. The connecting pipe 21 is inserted into the mounting hole 14. An exhaust port 22 that communicates with the corresponding air guide cavity 20 is disposed at the top of the air guide duct 19.

[0035] Furthermore, the air guide assembly 5 also includes several horizontal guide pipes 23, L-shaped guide pipes 24 and positioning parts 25. The horizontal guide pipes 23 and L-shaped guide pipes 24 are all installed on the circumferential side of the air guide pipe 19, and the air guide cavity 20 is connected to the corresponding horizontal guide pipes 23 and L-shaped guide pipes 24. The positioning parts 25 are fixedly installed on the circumferential side of the air guide pipe 19, and the L-shaped guide pipes 24 are inserted into the corresponding cold air outlet 18.

[0036] Specific embodiment two, based on specific embodiment one, such as Figure 1 and Figure 10 As shown, the support assembly 6 includes two symmetrically arranged support parts 26. Limiting guide rails 27 are fixedly arranged on both opposite side walls of the return air cavity 2. The support parts 26 are slidably sleeved on the corresponding limiting guide rails 27. The support parts 26 and the return air cavity 2 are connected by fasteners. Two horizontal guide rods 28 are fixedly arranged on the surface of the support parts 26. An elastic element 29 connected to the support parts 26 is arranged between the horizontal guide rods 28.

[0037] In this embodiment of the invention, such as Figure 11 As shown, the cooling assembly 7 includes a duct 30 that is slidably sleeved on the horizontal guide rod 28. The ducts 30 are fixedly connected to each other by a support plate 31. The support plate 31 is connected to the corresponding elastic element 29. In this way, the cooling needs of refrigerators of different widths can be adapted by adjusting the distance between the two cooling assemblies 7 and the two support assemblies 6. A hollow guide part 32 is fixedly installed on one side of the support plate 31. An air inlet pipe 33 sleeved inside the horizontal guide pipe 23 is connected to one side of the hollow guide part 32 (the air inlet pipe 33 is always connected to the horizontal guide pipe 23). An air inlet head 34 is connected to the other side of the hollow guide part 32 and inserted into the corresponding cold air inlet 17. The entire air guide assembly 5 can be stably installed in the return air cavity 2 by the insertion and cooperation of the connecting pipe 21 and the mounting hole 14 and the insertion and cooperation of the air inlet head 34 and the cold air inlet 17.

[0038] First, install the entire air guide assembly 5 into the return air cavity 2, ensuring that the connecting pipe 21 is tightly inserted into the mounting hole 14. Simultaneously, each air inlet 34 is tightly inserted into its corresponding cold air inlet 17. Next, install each refrigeration pipe assembly 8 into its corresponding storage compartment 4, ensuring that the refrigeration pipe assembly 8 is tightly inserted into its corresponding cold air inlet 17. Then, by compressing the elastic element 29 on the support assembly 6, bring the air inlet pipe 33 closer to the support part 26. After fitting the support part 26 on the support assembly 6 into the designated position on the limiting guide rail 27, gradually release the support plate 31 and, with the help of the elastic element 29... The restoring force causes the air inlet pipe 33 to insert into the corresponding horizontal guide pipe 23. At this time, the horizontal guide rod 28 is engaged with the corresponding positioning part 25. The position of the entire air guide assembly 5 is defined by each positioning part 25. After the support part 26 is fixed to the inner wall of the return air cavity 2 with fasteners, the installation of each air-cooling mechanism 3 is completed in the same way. This installation method can adapt to the cooling needs of refrigerators with different widths. Compared with the traditional fixed refrigeration structure, the design of the air-cooling mechanism 3 and the air guide assembly 5 in this application greatly improves the applicability.

[0039] When the refrigerator is working, the cooled air, after being cooled by the evaporator, is delivered to the cold air duct 13 by the blower, and then enters the lower air guide cavity 20 through the connecting pipe 21. The cooled air in the air guide cavity 20 enters the air inlet pipes 33 on both sides along the horizontal guide pipes 23 on both sides, and then enters the lower storage compartment 4 through the hollow guide section 32, the air inlet head 34 and the refrigeration pipe assembly 8 to achieve cooling. The cooled air in the lower storage compartment 4 then enters the middle air guide cavity 20 through the refrigeration pipe assembly 8 and the L-shaped guide pipe 24, and then enters the hollow guide section 32 through the middle horizontal guide pipe 23 and the air inlet pipe 33, and then enters the middle storage compartment 4 through the air inlet head 34 and the refrigeration pipe assembly 8 to achieve cooling. The cooled air in the middle storage compartment 4 then enters the middle storage compartment 4 through the refrigeration pipe assembly 8 and the L-shaped guide pipe 24 to achieve cooling. The airflow pipe 24 enters the upper air guide cavity 20, and then enters the hollow air guide section 32 through the upper horizontal air guide pipe 23 and air inlet pipe 33. Then, it enters the upper storage compartment 4 through the air inlet head 34 and the refrigeration pipe group 8 to achieve cooling. Finally, the refrigerated air in the upper storage compartment 4 enters the upper air guide cavity 20 through the refrigeration pipe group 8 and the upper L-shaped air guide pipe 24, and then returns to the return air cavity 2 through the exhaust port 22. The air in the return air cavity 2 enters the evaporator cooling cavity 12 through the return air port 15. After being cooled again by the evaporator, it is sent back into the cold air channel 13 by the blower. In this way, the air-cooled refrigeration cycle in the entire refrigerator can be realized. By symmetrically arranging two refrigeration pipe groups 8 in each storage compartment 4 and through the special structural design of the refrigeration pipe groups 8, the cooling efficiency of each storage compartment 4 can be improved.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-door air-cooled refrigerator based on a doorless design, comprising a refrigerator body (1); characterized in that, The refrigerator body (1) is provided with a return air cavity (2) on the rear side. Multiple sets of air-cooling mechanisms (3) are installed inside the return air cavity (2). Each storage compartment (4) in the refrigerator body (1) corresponds to a set of air-cooling mechanisms (3). An air guide assembly (5) is installed inside the return air cavity (2). The air-cooling mechanisms (3) are connected in series through the air guide assembly (5). The air-cooling mechanism (3) includes two symmetrically arranged support components (6), and a cooling component (7) with adjustable spacing is installed on the support component (6). The air guide component (5) is connected to the cooling components (7) on both sides. A refrigeration pipe group (8) located in the storage room (4) is connected to one side of the cooling component (7).

2. A multi-door air-cooled refrigerator based on a doorless design according to claim 1, characterized in that, The refrigerator body (1) has an equipment compartment (9) at the bottom. A partition plate (10) is fixedly installed inside the equipment compartment (9). A partition cover (11) is fixedly installed on one side of the partition plate (10). The equipment compartment (9) is used to install refrigeration equipment. An evaporative cooling chamber (12) is provided on the side of the partition plate (10) opposite to the partition cover (11). An evaporator is installed inside the evaporative cooling chamber (12). A cold air channel (13) is provided inside the partition cover (11).

3. A multi-door air-cooled refrigerator based on a doorless design according to claim 2, characterized in that, The return air chamber (2) is connected to the cold air channel (13) through the mounting hole (14). The return air chamber (2) is connected to the evaporative cooling chamber (12) through the return air inlet (15). The evaporative cooling chamber (12) is connected to the cold air channel (13) through the cold air inlet (16). A blower is installed inside the cold air inlet (16). The evaporator is located between the return air inlet (15) and the cold air inlet (16).

4. A multi-door air-cooled refrigerator based on a doorless design according to claim 3, characterized in that, The return air cavity (2) is provided with multiple sets of cold air inlets (17) and cold air outlets (18). Each set of cold air inlets (17) consists of two symmetrically arranged cold air inlets (17), and each set of cold air outlets (18) consists of two symmetrically arranged cold air outlets (18). Each storage room (4) is connected to the corresponding cold air inlet (17) and cold air outlet (18). The cold air inlet (17) is located below the corresponding cold air outlet (18).

5. A multi-door air-cooled refrigerator based on a doorless design according to claim 4, characterized in that, The air guide assembly (5) includes an air guide pipe (19) disposed in the return air cavity (2). The air guide pipe (19) has an air guide cavity (20) corresponding to the storage room (4) along the axial direction. The bottom of the air guide pipe (19) is fixedly provided with a connecting pipe (21) communicating with the corresponding air guide cavity (20). The connecting pipe (21) is inserted into the mounting hole (14). The top of the air guide pipe (19) is provided with an exhaust port (22) communicating with the corresponding air guide cavity (20).

6. A multi-door air-cooled refrigerator based on a doorless design according to claim 5, characterized in that, The air guide assembly (5) also includes several horizontal guide pipes (23), L-shaped guide pipes (24) and positioning parts (25). The horizontal guide pipes (23) and L-shaped guide pipes (24) are installed on the peripheral side of the air guide pipe (19), and the air guide cavity (20) is connected to the corresponding horizontal guide pipes (23) and L-shaped guide pipes (24). The positioning parts (25) are fixedly installed on the peripheral side of the air guide pipe (19), and the L-shaped guide pipes (24) are inserted into the corresponding cold air outlet (18).

7. A multi-door air-cooled refrigerator based on a doorless design according to claim 6, characterized in that, The support assembly (6) includes two symmetrically arranged support parts (26). Limiting guide rails (27) are fixedly arranged on both sides of the return air cavity (2). The support part (26) is slidably sleeved on the corresponding limiting guide rail (27). The support part (26) and the return air cavity (2) are connected by fasteners. Two horizontal guide rods (28) are fixedly arranged on the surface of the support part (26). An elastic element (29) connected to the support part (26) is arranged between the horizontal guide rods (28).

8. A multi-door air-cooled refrigerator based on a doorless design according to claim 7, characterized in that, The cooling assembly (7) includes a conduit (30) that is slidably sleeved on a horizontal guide rod (28). The conduits (30) are fixedly connected to each other by a support plate (31). The support plate (31) is connected to a corresponding elastic element (29). A hollow guide part (32) is fixedly installed on one side of the support plate (31). An air inlet pipe (33) sleeved inside the horizontal guide pipe (23) is connected to one side of the hollow guide part (32). An air inlet head (34) inserted into the corresponding cold air inlet (17) is connected to the other side of the hollow guide part (32).

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